Question

A sample of asparagine was burned in the bomb calorimeter calibrated above. The following energy value...

A sample of asparagine was burned in the bomb calorimeter calibrated above. The following energy value was determined for the balanced reaction:

2 C4H8N2O3(s) + 13 O2(g) → 8 CO2(g) + 8 H2O(l) + 4 NO2(g) ΔrU = -3720 kJ

Calculate the enthalpy of formation for solid asparagine, ΔfH(C4H8N2O3, ΔfH(CO2, g) = -393.52 kJ/mol ΔfH(H2O, l) = -285.83 kJ/mo lΔfH(NO2, g) = +33.10 kJ/mol

Assume that ΔrU= ΔrH

The answer is -790 kJ/mol enthalpy of formation solid asparagine

1. What is the energy of combustion per kilogram of asparagine????

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